PDA

View Full Version : Tubes / Valves


Pages : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 [25] 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96

  1. Switchable SE.
  2. GZ33 in place of 5U4 can it be done?
  3. phase splitter issue
  4. Armstrong A10 MK2 EL34 mono block
  5. "Ug" The Transformer
  6. i think its time i start playing with caps
  7. problems with preamp on home brew
  8. LS180 Tube Socket?
  9. simple question - 5V heater power supply
  10. Lineamp
  11. FI AUDİO 421 A
  12. Pete Millett has another Red Board for sale
  13. Jolida JD9 Problem
  14. 6N11 = 6N1P ?
  15. K12-G tube amp problem
  16. Please vote for one of the schematics.
  17. Advantages of separate PS for input and output stages
  18. Another PCB tube amp design
  19. Help. Replacement OPT sqrueeechhh.
  20. New concept of a power amp
  21. Lundahl and rectifier mismatch?
  22. Resurrecting weak tubes
  23. Best DHT heater?
  24. Help requested for EL84 SET amp
  25. What did I buy??
  26. Edcor and Custom Power Transformer Design
  27. What would you make with this power TX?
  28. Lundahl 1676
  29. DHT for 300B problem
  30. Newbie question about output transformer to speaker matching
  31. Red board add-on phono/RIAA pre-amp
  32. 2 Chassis amp
  33. Is It posible to bridge two quad II monoblocks?
  34. Power tube at work picture
  35. Tube SE power amp , which one??
  36. Hickok 539A issue
  37. Noise in one channel? Pioneer SX-400
  38. Hartung / Prestla OTL amps
  39. Lafayette Model 417
  40. Extreme plate load
  41. What do you think about this idea
  42. el84pse schem, need advice
  43. Video pentodes as outputs
  44. Custom Vibrolux Reverb noise issue
  45. Chinese "Audio Research" KT88s
  46. Fender bandmaster rectifire problem.
  47. New 6C33 Socket
  48. 2a3 PP output transformer
  49. PSU problem - Murphy is an ***hole!
  50. Best SET design?
  51. Anybody ever tried EBC41 as 12AX7 substitute?
  52. The 7242
  53. 12bh7a
  54. Phase Splitter Help
  55. Oscilloscope Question
  56. sizing opt
  57. 6P3C-E Datasheet help
  58. on the toroids again
  59. OPT problem or Something else 6L6 PP
  60. Look what I found!
  61. Help, Diy tube amp
  62. Idea
  63. a few DIY tube amplifier setups
  64. 6L6 PP amp motorboating
  65. Mayer-inspired 4P1L
  66. 6L6 WGB 2X34W STEREO AMPL
  67. Isolation transformation wiring project help
  68. Tube Amp DIY or Retail
  69. Supplier for GU50 tubes
  70. 2E26's
  71. Encel Stereophonic M.F.B CSM 40 amplifier
  72. Mono 300B SE Amplifier
  73. Broken tubes for 3D Modelling
  74. Loud hum in one channel
  75. 6EM7 PP question
  76. 12AU7/IRF610 Hybrid Amplifier
  77. 12AU7/IRF610 Hybrid Amplifier
  78. RIAA preamplifier
  79. Classic amp, Chinese or scratch-build for Quad ESL?
  80. CLASS A TUBE AMPLIFIER FOR TWEETER
  81. How to gap output transformers?
  82. Cathode bypasses - partial bypass and combination bias
  83. Phase splitter
  84. YS Audio balanced Preamp
  85. Low voltage 12AU7 (19J6) -- re "starving"
  86. phase splitter
  87. JTM30 output transformer
  88. Music Angel Meng 6P1
  89. Is it possible to dampen a partially microphonic 12ax7?
  90. Pioneer SA-810 tube amp.
  91. 6C33 D.C.M.B. - Paging Ari Polisois
  92. Whose is this logo?
  93. What is grid resistance of 807/6l6 in pentode
  94. PAS Upgrade Boards by Epperson
  95. Bang and Olufsen 609k stereo se el84 fm tuner
  96. Finished EL34 tube amp... but oscilates weird..
  97. Scope Trace
  98. Drifty tubes
  99. Choosing plate voltage
  100. Determining Zout for SRPP
  101. PX25 amplifier - thoughts?
  102. Testing Ck5703 tubes
  103. When can screen voltage be higher than plate???
  104. 31AL10's
  105. Lafayette TE-50 Tube Tester
  106. Acoustic (not Audio) Alchemy - I need a wizzard
  107. current feedback
  108. dac with tube buffer/preamp
  109. Sowter 3607
  110. Back to Loftin-White
  111. What to build? (I have a lot of parts)
  112. Grounding chassis through RCA
  113. K40Y-9: Questions And Comments
  114. buffer line stage schematic
  115. Dual triode Thanks for the pre-attenuation link
  116. Help With Alps Volume Pot Noise
  117. 6AM4 driving 45???
  118. Franks 6sn7 line stage question
  119. Edcor power tx XPWR035 issue
  120. Recommend me a schematic for El34 or KT88 ?
  121. RH84 Power supply
  122. Pentode driving a SE triode? any experience?
  123. Big tubes thread
  124. Meng Yayi KT88 MonoBlock
  125. Old Dumont Console - Story and Questions
  126. Newbie GlassWare Aikido All in One Questios
  127. Building my 1st tube amp
  128. A good tube for my SE 5K-8 OPT's
  129. 6c33 - ready, SET, GO
  130. Noisy tube rectifier goes quiet when i put my hand NEAR it
  131. Tweed 5E3 Deluxe Project Problems
  132. Strange ancient looking tube amp
  133. Vintage Dynaco vs. Triode Electronics
  134. LINE PRE - 6N9S - 6dB
  135. Can I balance a diff stage like this?
  136. Ways to design for low IM distortion
  137. Genalex KT88 Plate Dissipation Question
  138. difference between SE and PP transformer
  139. I put a bad ouput tube in my amp, did I hurt it?
  140. Vox AV 100 Mk2
  141. Stereo amplifyer project
  142. 6sl7 6sl7 dynaco driver board
  143. PCB for stand alone 5W SE
  144. Triode VS. UL bias
  145. How to test a DIY amp?
  146. Morgan Jones 4th ed
  147. How close is too close when designing an amp
  148. Fatman I tube Problem
  149. 807 p-p tube amp schematic
  150. TUBELAB SIMPLE SE
  151. Listen to 6DJ8 Triode through Power Chip IC. Easy project.
  152. Cheap motor caps(MKP) vs Electrolitics
  153. James O/P Tx
  154. Ripple reduction with added voltage compensation to HV
  155. SEVETLANA "SV" 6550 C vs 6550 C
  156. Frank's 6SN7 - plate follower, noise
  157. Help running RH807 at higher voltage
  158. Preamp hum issues
  159. EML mesh plate 2a3 in DRD amp
  160. How to run RH807 at 400V?
  161. Preamp Umbilical - Use Shield as Ground Lead?
  162. Automatic Bias Control sliding bias
  163. Edcor Output Transformer Resistance
  164. Would this be worthwile restoring?
  165. Historic Tube Amplifiers
  166. 6HF5 testing
  167. A quick question about NFB
  168. PAS3 - are the tone controls really *that* bad?
  169. PP OPT in SE mode operation?
  170. Cheap 6n6p double ended push-pull idea - thoughts?
  171. Vintage WE Tubes
  172. SE amplifier advice..
  173. Mineature Tubes
  174. MD SM 102b transformer spec's please
  175. Vintage Marconi radio
  176. second order harmonics
  177. Hybrid amplifier
  178. Input caps for Motorola Console Amps
  179. to much gain
  180. Question - Type 19 tube
  181. alternative for footswitch??
  182. Noob. Help PP EL34 / EF86 both as triode schem.
  183. Yet another LA-2A
  184. RH84 SE, pentode driver... advice please
  185. Having an issue with a MOSFET in my Blue Hawaii
  186. Info wanted on OPT....
  187. 6P43P Strange Plate Graphs
  188. Multiple Phono preamp
  189. pas filament supply
  190. HV on high voltage amps
  191. Lageschaar hybrid-connection PSE-KT66
  192. First DIY from scratch
  193. Ballance resistors
  194. casing about SOHA I headphone amp
  195. Any interest in 56 various tubes?
  196. Help with exploding tubes!
  197. My new filiment PS for Push Pull GM70
  198. So what exactly do I have here? Heathcraft EA-2
  199. Please help identify this Amveco toroidal transformer.
  200. first experience with retro electronics
  201. Revising a tube pre-amp: can't find parts?
  202. Info for Pioneer SA-810 tube amp
  203. Has anyone tried tx2575 in cathode resistor?
  204. 12JZ8
  205. Is it OK to drill mounting holes in transformer laminations?
  206. Seeking Sescom Transformer Specs
  207. Calibrating a Sencor ??
  208. Capacitor in parallel with negative feedback resistor
  209. Old electronics repair store closing. Hartford. FYI. Not related
  210. CL ad for tubes in MA. FYI only. Not connected
  211. Distortion in amp after warm up
  212. Re-bias when changing from Triod to Pentode
  213. Yaqin MC-10L - Electricity in volume knob
  214. Newbie question about a 300B amplifier
  215. Modified Wavebourn Tower II ?
  216. Elevated Heater Voltages - 40v?
  217. Free Tubes!
  218. found tube i like, only small bits of red letter,what tube brands used red lettering?
  219. Impedance problem Of O/P Transformer
  220. Runaway tubes or tubes drawing excess current--baffling
  221. croft SD3 CROFT PREAMP
  222. valve phono stage on a budget
  223. Dynaco vs. Dynaclone
  224. Amplifier Problem - Need help!
  225. Idea for a 6n1p preamp
  226. K & K Audio Two Terminal Constant Current Source
  227. 6550 Push Pull noise in power stage
  228. 6P1P-EV PP guitar amp tryout.
  229. question about output transformer for guitar amp
  230. Hammond B3 tech help needed. Distortion only on certain notes/drawbar frequencies.
  231. Counterpoint SA-12 wackyness
  232. Shuguang SG-50
  233. manley EQP-1A Tube EQ
  234. El34 PP advice needed
  235. Fosgate Punch 800 a4, diagram needed
  236. Power Transfomer For Valve Amp Question
  237. a 'simpler' tube/valve mixer topology
  238. Qustions about centre speaker connection
  239. Using Seperate Preamp to Drive S-5 Electronics K-16LS Integrated Amp?
  240. 0d3 for el84 screen regulator
  241. Edcor XPWR059 power problem
  242. Did bootstrapping pot change it's operation
  243. Transformer wiring (Need Help)
  244. Class-d Hybrid
  245. New test data comparing different 7591's
  246. Eico 666 Tube Tester Freaks Out When Testing Rectifier Tubes
  247. ZKIT2 Zen Triode mono SET amplifier kit
  248. Tango 11146 Output Transformers ?
  249. KT120 Tube
  250. B&K Dyna-Quik 500 test socket 9A shows good tubes as Bad

Content Relevant URLs by vBSEO 3.3.2